vena

v. ca´va infe´rior inferior vena cava: the venous trunk for the lower extremities and the pelvic and abdominal viscera; it begins at the level of the fifth lumbar vertebra by union of the common iliac veins, passes upward on the right of the aorta, and empties into the right atrium of the heart.

v. ca´va supe´rior superior vena cava: the venous trunk draining blood from the head, neck, upper extremities, and chest; it begins by union of the two brachiocephalic veins, passes directly downward, and empties into the right atrium of the heart.

ve´nae vaso´rum small veins that return blood from the tissues making up the walls of the blood vessels themselves.

an uncommon anomaly in dogs, often associated with other vascular anomalies such as persistent right aortic arch and tetralogy of Fallot.

posterior vena cava

caudal vena cava.

cranial vena caval venipuncture

a technique for blood sample collection in pigs; a needle is inserted into the cranial vena cava near the thoracic inlet.

Patient discussion about vena

Q. I drink liquor a lot maybe 4x a week and I love drinking but after a couple days my veins star to hurt...Y? It runs in the familly alcohol and bud but I wish I could go a whole year withought poppin bottles.. what will be perscibed to a alki?

A. FROM ALL THAT DRINKING

Q. Are long flights dangerous? I'm flying next week to my vacation, and the flight is going to be rather long (almost 16 hours non-stop). Several years ago, my 75 years-old aunt had blood clot in her lung after a flight of similar length. I also heard that during flight the blood in the legs clots and that it can cause after that problems with the lungs and breathing.
Does this mean it's dangerous for me to fly? Should I change my ticket to shorter connection flights?

A. Do other relatives of yours have blood clotting problems too, like your aunt? You should tell a doctor about the problem your aunt had and ask if it's genetic.

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